code: def cluster_manager(self):
      return self.settings["cluster_manager"]
  
file_path: ipyparallel/ipyparallel/nbextension/handlers.py
imports: import json
  import os
  from tornado import web
  from ..cluster import ClusterManager
  from ..util import abbreviate_profile_dir
  from .base import get_api_handler
label_desc: Use image node_id 1 for calling the ClusterHandler obj's underlying member method code with example usage: obj.cluster_manager() and returns: self